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  • The Dynamics of Soil Carbon and Nitrogen in a Wet Australian Sclerophyll Forest as Affected by Repeated Prescribed Fires

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    Muqaddas_2015_01Thesis.pdf (2.467Mb)
    Author(s)
    Muqaddas, Bushra
    Primary Supervisor
    Chen, Chengrong
    Other Supervisors
    Wild, Clyde
    Wong, Victor
    Year published
    2015
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    Abstract
    Australia has 155 million hectares of native forests. Trees in Australia's native forests hold about 6.56 billion tonnes of carbon (C) in their biomass, with eucalypt woodlands and open forests containing the most biomass. Historically, fire has been a distinct feature of Australian forests. It is predicted that the frequency and severity of fire in Australia would be increased due to reduced rainfall and high temperature in the near future. Prescribed burning (generally low density fires) has been used as a tool in forest management around the world to reduce fuel load and to protect many of the landscapes from wildfires. ...
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    Australia has 155 million hectares of native forests. Trees in Australia's native forests hold about 6.56 billion tonnes of carbon (C) in their biomass, with eucalypt woodlands and open forests containing the most biomass. Historically, fire has been a distinct feature of Australian forests. It is predicted that the frequency and severity of fire in Australia would be increased due to reduced rainfall and high temperature in the near future. Prescribed burning (generally low density fires) has been used as a tool in forest management around the world to reduce fuel load and to protect many of the landscapes from wildfires. However, there are concerns that prescribed fires cause a reduction in soil fertility at sites where the intervals between fires are too short. The extent of fire effects on aboveground ecosystem components and soil varies greatly with fire intensity and frequency. Most studies have been focused on the short-term/immediate effects of fires on soil. The effects of frequency of the long-term repeated fires are largely unknown. The objectives of this study were to examine the effects of different repeated prescribed-burning regimes on a) C and nitrogen (N) storage and b) temporal dynamics of C and N in an Australian forest (Peachester State Forest), using a 39 year-old repeated prescribed burning trial with three treatments: no burning (NB) since 1969, 2 yearly burning (2yrB) and 4 yearly burning (4yrB).
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    Thesis Type
    Thesis (PhD Doctorate)
    Degree Program
    Doctor of Philosophy (PhD)
    School
    Griffith School of Environment
    DOI
    https://doi.org/10.25904/1912/254
    Copyright Statement
    The author owns the copyright in this thesis, unless stated otherwise.
    Item Access Status
    Public
    Subject
    Sclerophyll forest
    Prescribed fires
    Soil carbon
    Soil nitrogen
    Peachester State Forest, Queensland
    Publication URI
    http://hdl.handle.net/10072/367887
    Collection
    • Theses - Higher Degree by Research

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